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- /*-
- * Copyright (c) 1991 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)tp_cons.c 7.8 (Berkeley) 5/9/91
- */
-
- /***********************************************************
- Copyright IBM Corporation 1987
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the name of IBM not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
-
- ******************************************************************/
-
- /*
- * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
- */
- /*
- * ARGO TP
- * $Header: tp_cons.c,v 5.6 88/11/18 17:27:13 nhall Exp $
- * $Source: /usr/argo/sys/netiso/RCS/tp_cons.c,v $
- *
- * Here is where you find the iso- and cons-dependent code. We've tried
- * keep all net-level and (primarily) address-family-dependent stuff
- * out of the tp source, and everthing here is reached indirectly
- * through a switch table (struct nl_protosw *) tpcb->tp_nlproto
- * (see tp_pcb.c).
- * The routines here are:
- * tpcons_input: pullup and call tp_input w/ correct arguments
- * tpcons_output: package a pkt for cons given an isopcb & some data
- * cons_chan_to_tpcb: find a tpcb based on the channel #
- */
-
- #ifdef ISO
- #ifdef TPCONS
-
- #include "param.h"
- #include "socket.h"
- #include "domain.h"
- #include "mbuf.h"
- #include "errno.h"
- #include "time.h"
-
- #include "../net/if.h"
- #include "../net/route.h"
-
- #include "tp_param.h"
- #include "argo_debug.h"
- #include "tp_stat.h"
- #include "tp_pcb.h"
- #include "tp_trace.h"
- #include "tp_stat.h"
- #include "tp_tpdu.h"
- #include "iso.h"
- #include "iso_errno.h"
- #include "iso_pcb.h"
- #include "cons.h"
- #include "tp_seq.h"
-
- #undef FALSE
- #undef TRUE
- #include "../netccitt/x25.h"
- #include "../netccitt/pk.h"
- #include "../netccitt/pk_var.h"
-
- #include "if_cons.c"
- int tpcons_output();
-
- /*
- * CALLED FROM:
- * tp_route_to() for PRU_CONNECT
- * FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE:
- * version of the previous procedure for X.25
- */
-
- tpcons_pcbconnect(isop, nam)
- struct isopcb *isop;
- register struct mbuf *nam;
- {
- int error;
- if (error = iso_pcbconnect(isop, nam))
- return error;
- if ((isop->isop_chan = (caddr_t) pk_attach((struct socket *)0)) == 0) {
- IFDEBUG(D_CCONS)
- printf("tpcons_pcbconnect: no pklcd; returns 0x%x\n", error);
- ENDDEBUG
- return ENOBUFS;
- }
- if (error = cons_connect(isop)) { /* if it doesn't work */
- /* oh, dear, throw packet away */
- pk_disconnect((struct pklcd *)isop->isop_chan);
- isop->isop_chan = 0;
- } else
- isop->isop_refcnt = 1;
- return error;
- }
-
-
- /*
- * CALLED FROM:
- * cons
- * FUNCTION and ARGUMENTS:
- * THIS MAYBE BELONGS IN SOME OTHER PLACE??? but i think not -
- */
- ProtoHook
- tpcons_ctlinput(cmd, siso, isop)
- int cmd;
- struct sockaddr_iso *siso;
- struct isopcb *isop;
- {
- switch (cmd) {
-
- case PRC_CONS_SEND_DONE:
- if( isop->isop_socket ) { /* tp 0 only */
- register struct tp_pcb *tpcb =
- (struct tp_pcb *)isop->isop_socket->so_tpcb;
- struct tp_event E;
- int error = 0;
-
- if( tpcb->tp_class == TP_CLASS_0 ) {
- /* only if class is exactly class zero, not
- * still in class negotiation
- */
- /* fake an ack */
- register SeqNum seq = SEQ_ADD(tpcb, tpcb->tp_snduna, 1);
-
- IFTRACE(D_DATA)
- tptrace(TPPTmisc, "FAKE ACK seq cdt 1",
- seq, 0,0,0);
- ENDTRACE
- IFDEBUG(D_DATA)
- printf("FAKE ACK seq 0x%x cdt 1\n", seq );
- ENDDEBUG
- E.ATTR(AK_TPDU).e_cdt = 1;
- E.ATTR(AK_TPDU).e_seq = seq;
- E.ATTR(AK_TPDU).e_subseq = 0;
- E.ATTR(AK_TPDU).e_fcc_present = 0;
- error = DoEvent(AK_TPDU);
- if( error ) {
- tpcb->tp_sock->so_error = error;
- }
- } /* else ignore it */
- }
- break;
- case PRC_ROUTEDEAD:
- if( isop->isop_socket ) { /* tp 0 only */
- tpiso_reset(isop);
- break;
- } /* else drop through */
- default:
- (void) tpclnp_ctlinput(cmd, siso);
- break;
- }
- return 0;
- }
-
- /*
- * CALLED FROM:
- * cons's intr routine
- * FUNCTION and ARGUMENTS:
- * Take a packet (m) from cons, pullup m as required by tp,
- * ignore the socket argument, and call tp_input.
- * No return value.
- */
- ProtoHook
- tpcons_input(m, faddr, laddr, channel)
- struct mbuf *m;
- struct sockaddr_iso *faddr, *laddr;
- caddr_t channel;
- {
- if( m == MNULL)
- return 0;
-
- m = (struct mbuf *)tp_inputprep(m);
-
- IFDEBUG(D_TPINPUT)
- printf("tpcons_input before tp_input(m 0x%x)\n", m);
- dump_buf( m, 12+ m->m_len);
- ENDDEBUG
- tp_input(m, faddr, laddr, channel, tpcons_output, 0);
- return 0;
- }
-
-
- /*
- * CALLED FROM:
- * tp_emit()
- * FUNCTION and ARGUMENTS:
- * Take a packet(m0) from tp and package it so that cons will accept it.
- * This means filling in a few of the fields.
- * inp is the isopcb structure; datalen is the length of the data in the
- * mbuf string m0.
- * RETURN VALUE:
- * whatever (E*) is returned form the net layer output routine.
- */
-
- int
- tpcons_output(isop, m0, datalen, nochksum)
- struct isopcb *isop;
- struct mbuf *m0;
- int datalen;
- int nochksum;
- {
- register struct mbuf *m = m0;
- int error;
-
- IFDEBUG(D_EMIT)
- printf(
- "tpcons_output(isop 0x%x, m 0x%x, len 0x%x socket 0x%x\n",
- isop, m0, datalen, isop->isop_socket);
- ENDDEBUG
- if (m == MNULL)
- return 0;
- if ((m->m_flags & M_PKTHDR) == 0) {
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == 0)
- return ENOBUFS;
- m->m_next = m0;
- }
- m->m_pkthdr.len = datalen;
- error = pk_send(isop->isop_chan, m);
- IncStat(ts_tpdu_sent);
-
- return error;
- }
- /*
- * CALLED FROM:
- * tp_error_emit()
- * FUNCTION and ARGUMENTS:
- * Take a packet(m0) from tp and package it so that cons will accept it.
- * chan is the cons channel to use; datalen is the length of the data in the
- * mbuf string m0.
- * RETURN VALUE:
- * whatever (E*) is returned form the net layer output routine.
- */
-
- int
- tpcons_dg_output(chan, m0, datalen)
- caddr_t chan;
- struct mbuf *m0;
- int datalen;
- {
- return tpcons_output(((struct pklcd *)chan)->lcd_upnext, m0, datalen, 0);
- }
- #endif TPCONS
- #endif ISO
-